QCE PhysicsPractice Examination 4

This paper covers

• Unit 3 Gravity and Electromagnetism: uniform circular motion and centripetal dynamics, Newton's Law of Universal Gravitation, gravitational field strength, Kepler's three laws, orbital/satellite mechanics, Coulomb's Law, electric fields, work done on charges, the motor effect, electromagnetic induction (Faraday/Lenz), AC generators, and transformers with power transmission
• Unit 4 Revolutions in Modern Physics: special relativity (Einstein's postulates, simultaneity, time dilation, length contraction, mass-energy equivalence), quantum theory (Planck's hypothesis, photoelectric effect, de Broglie duality, Bohr hydrogen model), and the Standard Model (quarks, leptons, baryons, mesons, antiparticles, four forces and exchange bosons, conservation laws, Feynman diagrams)
• Cosmic-ray muon stimulus thread: applying time dilation in the Earth frame and length contraction in the muon rest frame to explain why muons reach sea level despite a short half-life, with quantitative survival-fraction reasoning that reconciles both frames
• Assessment Objectives 1-4 only: describe/explain, apply/calculate, analyse evidence, interpret/evaluate/justify; full reasoning chains (stimulus evidence then physics principle then conclusion), correct SI units and significant figures, step-by-step working, and QCAA Formula and Data Book usage

Students are permitted to bring into the examination the materials normally allowed for this subject. Answer all questions in the spaces provided.

This is an ATARMAxxing practice paper. It is not an official examination and is not affiliated with, endorsed by, or produced by the VCAA, NESA or the QCAA.